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Maths CBSE Homework Assignments
Class 10
Quadratic Equations
Find the unkown value
1.
Find the value of the variable for equal roots
Question:
4
m.
If the following equations have
two equal roots
, then find the value of
'\(a\)'.
1
.
\(x^2 + ax + 9 = 0\)
\(a = 16\) or \(a = -16\)
\(a = 4\) or \(a = -4\)
\(a = \sqrt{6}\) or \(a = -\sqrt{6}\)
\(a = 6\) or \(a = -6\)
2
.
\(9x^2 + ax + 2 = 0\)
\(a = 2 \sqrt{6}\) or \(a = -2 \sqrt{6}\)
\(a = 3 \sqrt{4}\) or \(a = -3 \sqrt{4}\)
\(a = 6 \sqrt{2}\) or \(a = -6 \sqrt{2}\)
\(a = 4 \sqrt{3}\) or \(a = -4 \sqrt{3}\)
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